Package org.reldb.wrapd.sqldb

Interface Customisations

All Known Implementing Classes:
SQLiteCustomisations
public interface Customisations
Defines custom, DBMS-specific behaviour.

  • Method Summary

    Modifier and Type Method Description
    java.lang.String getSpecificColumnClass​(java.lang.String columnSQLType)
    Some JDBC drivers return a general class type, like java.lang.Object, for ResultSet::getMetaData().getColumnClassName(column).
    java.lang.Object getSpecificColumnValue​(java.lang.Object retrievedValue, java.lang.String columnSQLType)
    As noted above, some JDBC drivers return a generic class for a column type.

  • Method Details

    • getSpecificColumnClass

      java.lang.String getSpecificColumnClass​(java.lang.String columnSQLType)
      Some JDBC drivers return a general class type, like java.lang.Object, for ResultSet::getMetaData().getColumnClassName(column). This method specifies a more usefully specific class name to host the column value.
      Parameters:
      columnSQLType - - sql type name typically returned by ResultSet::getMetaData().getColumnTypeName(column)
      Returns:
      - class name of class returned by getSpecificColumnValue(Object retrievedValue)

    • getSpecificColumnValue

      java.lang.Object getSpecificColumnValue​(java.lang.Object retrievedValue, java.lang.String columnSQLType)
      As noted above, some JDBC drivers return a generic class for a column type. Given a retrieved value of some overly-generic class -- probably java.lang.Object -- convert it to a more useful specific class type per getSpecificColumnClass() above.
      Parameters:
      retrievedValue - - value obtained via ResultSet::getObject(column)
      columnSQLType - - sql type name typically returned by ResultSet::getMetaData().getColumnTypeName(column)
      Returns:
      - class name of class returned by getSpecificColumnValue(Object retrievedValue)